package filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet Filter implementation class EncodingFilter
 */
public class EncodingFilter implements Filter {

    /**
     * Default constructor. 
     */
    public EncodingFilter() {
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see Filter#destroy()
	 */
	public void destroy() {
		// TODO Auto-generated method stub
	}

	/**
	 * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
	 */
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {

		request.setCharacterEncoding("UTF-8");
		response.setCharacterEncoding("UTF-8");
		 HttpServletResponse resp = (HttpServletResponse) response;  
		 resp.setHeader("Access-Control-Allow-Origin", "*");  
		 resp.setHeader("Access-Control-Allow-Methods", "POST, GET, PUT, OPTIONS, DELETE");  
		 resp.setHeader("Access-Control-Max-Age", "3600");  
		 resp.setHeader("Access-Control-Allow-Headers", "x-requested-with, Content-Type");  
		 resp.setHeader("Access-Control-Allow-Credentials", "true");
		chain.doFilter(request, response);
	}

	/**
	 * @see Filter#init(FilterConfig)
	 */
	public void init(FilterConfig fConfig) throws ServletException {

	}

}
